Door-stop.



No. 741,41O. PATBNTED OOT. `13, 1903.

- W. PLATT.

` DOOR STOP.

Patented October 13, 1903.

PATENT @Erica VILLIAM PLATT, OF ALLEGHENY, PENNSYLVANIA.

DOOR-STOP.

SPECIFICATION forming part of Letters Patent No. 741,410, dated October 13, 1903. Application filed July-28, 1903. Serial No. 167.266. (No model.)

To a/ZZ whom t may concern.-

Be it known that I, WILLIAM PLATT, a citizen of the United States of America, residing at Allegheny, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Door-Stops, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to certain new and useful improvements in door-stops; and the object of the invention is to construct a simple, cheap, and effective device of this type and comprising a box or casing in which is located a pair of spring-pressed jaws adapted to receive a head carried on a stop which is attached to the door. Means is provided for forcing the jaws downwardly to disengage the same from the stop carried by the door,where by the latter can be closed. Means is provided in the case for normally forcing the jaws upwardly whereby to be in position to engage with the stop carried by the door. The stop carried by the door is preferably provided with a buffer or cushion in order that this stop may be employed as the ordinary cushion-stop, if desired.

All the above construction will be hereinafter more fullyvdescribed, and specifically pointed out inthe claims, and in describing the invention in detail reference is had to the accompanying drawings, forming a part of this specification, and'wherein like numerals of reference indicate like parts throughout the several views, in which- Figure 1 is a perspective view of a part. of a room and door, showing the application of my improved door stop or check. Fig. 2 is a central Vertical sectional view showing the stop detached from the lug and in locked engagement with the spring-pressed jaws. Fig. 3 is a detached detail perspective view of the spring-pressed jaws, showing a part of the plunger and casing carrying the jaws. Fig. 4 is a horizontal sectional view of the casing, showing the spring-pressed jaws in top plan.

To put my invention into practice, I provide a casing, shell, or housing 1, provided at its base with outwardly-extending lugs 2, through which may be passed fastening screws or nails for securing the casing firmly in p0- sition upon the floor. The casing is situated on the iioor, usually adjacent to the wall, so that when the door is opened the stop carried thereby will engage with the mechanism in the casing and hold the door in the open position. The casing is provided in its front wall with an opening 3, and fitted to slide vertically in the casing or shell 1 is a box or frame 4, to which is attached a yoke 5, having a plunger 6 connected toits upper end. This plunger 6 extends through the top plate 7 of the forward end, with an opening through which project the jaws 10, which are held normally projected through the openings by the tension of springs 11, which bear against the rear ends of said jaws and are fastened to the inner wall of the boxings 9. The front faces of these jaws 10 are beveled, whereby to permit the jaws being forced inwardly into their boxes when the stop carried by the door engages therewith.

The stop or catch carried by the door comprises a shank 12, provided with a substantially spear-shaped head 14, the shank at its other end having apertured lugs 15 to receive means for securing the catch to the door 16. interposed between the rear end of the stop or catch and the door 16 is a buffer 17, of rubber or other like material, whereby the catch can be used as an ordinary stop for engagement with the wall. The springpressed jaws 10 are normally held in position to receive and engage the spear-shaped-head 14 of the 'stop bymmeans of a spring 18,*arranged on the guide-pin 19, which is mounted in the base ofthe box and extends through the guide-opening 20, provided therefor in the bottom of the box or frame. When the door is open and the spear-shaped head 14 engages spring-pressed jaws 101 the latter are forced apart until the head 14 passes them., at which time the springs force the edges of the jaws into engagement with the notches ICO 2l of the head, whereby to hold the door in the open position.

When it is desired to close the door, the spring-pressed jaws and their box or frame are depressed, which may be done by footpressure on top of the head orknob 8, causing the plunger to depress the jaws and their frame, moving said jaws out of engagement with notches 2l, allowing the door to be free to be closed. When the stop or catch moves out through opening 3 and pressure on the plunger is relieved, the spring 18 elevates the plunger and spring-pressed jaws to their normal position, so that said jaws are again in front of opening 3 to receive the catch when the door would again open.

In the practice ot' the invention it will be obvious that slight changes may be made in the details of construction wit-hout departing from the general spirit of my invention.

Having fully described my invention, what Iclaim as new, and desire to secure by Letters Patent, is-

l. A door-stop comprising in combination with a catch secured t'o the door and provided with a spear-shaped head, a casing adapted to be secured to the floor and provided in its front wall with an opening, a boxing or frame arranged to slide vertically in the casing, a

spring arranged underneath said boxing or frame and exerting its pressure upward;

against the same, spring-pressed grippingjaws carried by said boxing or frame t0 engage with the spear-shaped head of the catch carried by the door, a yoke secured to the boxing or frame, and a plunger connected to said yoke and extending through the top of the casing, substantially as described.

2. In a device of the character described, the combination with a stop or catch secured to a door and provided with notches, and a buffer or cushion between the stop or catch and the door, of a casing adapted to be secured to the floor and provided in its front wall with an opening, a boxing or frame within the casing and adapted to be moved vertically therein, spring-pressed jaws carried by said boxing or frame to engage with the notches in the stop or catch carried by the door, means underneath the boxing or frame to hold said jaws normally in position to receive the stop or catch, and a plunger connected to the boxing or frame andv extending throughthe top of the casing, as and for the purpose described.

In testimony whereof I affix my signature in the presence of two witnesses.

WILLIAM PLATT.

Witnesses:

E. E. POTTER, R. J. FRICKER. 

